CN219509756U - Wind driven generator blade replacement equipment based on multiple guide units - Google Patents
Wind driven generator blade replacement equipment based on multiple guide units Download PDFInfo
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- CN219509756U CN219509756U CN202321001652.8U CN202321001652U CN219509756U CN 219509756 U CN219509756 U CN 219509756U CN 202321001652 U CN202321001652 U CN 202321001652U CN 219509756 U CN219509756 U CN 219509756U
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- guiding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model provides equipment for replacing wind driven generator blades based on a plurality of guide units. The rig includes a tower secured to the ground, a nacelle mounted atop a roof of Yu Datong, a hub mounted to the nacelle, and blades mounted to the hub. The device comprises a blade root lifting appliance, a hub guiding mechanism, a cabin guiding mechanism, a power unit and a steel wire rope, wherein the blade root lifting appliance is arranged at the root of a blade; the steel wire rope is connected with the blade lifting appliance and the hub lifting appliance and then sequentially bypasses the hub guiding mechanism and the cabin guiding mechanism to be connected to the power unit; the hub guiding mechanism comprises a first guiding unit and a second guiding unit, wherein the first guiding unit is suitable for guiding the steel wire rope along at least one direction, and the second guiding unit is suitable for guiding the steel wire rope along one direction; the power unit is adapted to tighten or release the wire rope to hoist or lower the blade. The utility model has the advantages of low hoisting cost, small occupied area, little greening damage, high response speed and the like.
Description
Technical Field
The utility model belongs to the technical field of wind power generation, and particularly relates to equipment for replacing blades of a wind power generator based on a plurality of guide units.
Background
With the increasing installed capacity of wind turbines and the year-by-year growth of service lives of wind turbines, more and more units need blade replacement. At present, a general fan adopts a large-sized automobile crane to replace blades, a crawler crane is required to be used for replacing blades for a large megawatt high-tower fan, and a landing leg ship is required to be used for replacing blades for an offshore wind driven generator. However, the use of large hoisting equipment not only generates high hoisting costs, but also is subject to environmental conditions.
Disclosure of Invention
The utility model provides a device for replacing blades of a wind driven generator based on a plurality of guide units, which can realize the replacement of the blades without using large hoisting equipment, has the advantages of low hoisting cost, small occupied area, little greening damage, high response speed and the like, and is particularly suitable for high-tower fans, offshore fans and fans in remote areas with scarcity of large cranes.
In order to achieve the above purpose, the present utility model provides the following technical solutions.
An apparatus for replacing a wind turbine blade based on a plurality of guide units, the apparatus comprising a tower fixed to the ground, a nacelle mounted on top of Yu Datong, a hub mounted to the nacelle, and a blade mounted to the hub. The device comprises a blade root lifting appliance, a hub guiding mechanism, a cabin guiding mechanism, a power unit and a steel wire rope, wherein the blade root lifting appliance is arranged at the root of a blade; the steel wire rope is connected with the blade lifting appliance and the hub lifting appliance and then sequentially bypasses the hub guiding mechanism and the cabin guiding mechanism to be connected to the power unit; the hub guiding mechanism comprises a first guiding unit and a second guiding unit, wherein the first guiding unit is suitable for guiding the steel wire rope along at least one direction, and the second guiding unit is suitable for guiding the steel wire rope along one direction; the power unit is adapted to tighten or release the wire rope to hoist or lower the blade.
Optionally, the blade root sling includes a blade root sling bracket mounted to a root of the blade, and a blade root sling guide wheel rotatably mounted to the blade root sling bracket; the hub sling comprises a hub sling bracket mounted on the hub and a hub sling guide wheel rotatably mounted on the hub sling bracket; the wire rope is connected to the hub or blade by one end thereof and sequentially bypasses the blade root spreader guide wheel and the hub spreader guide wheel to connect the blade root spreader and the hub spreader.
Optionally, the hub guiding mechanism comprises at least one second guiding unit and a first guiding unit, wherein the at least one second guiding unit and the first guiding unit are arranged in front of and/or behind the at least one second guiding unit at intervals in sequence; the first guiding unit is adapted to guide the wire rope from the hub sling to a first one of the at least one second guiding unit and/or to guide the wire rope from a last one of the at least one second guiding unit to the nacelle guiding mechanism.
Optionally, the first guiding unit includes a first guiding bracket mounted to the hub, and at least one first guiding wheel rotatably mounted to the first guiding bracket; the mounting angles of the respective first guide wheels of the at least one first guide wheel on the first guide bracket are different to guide the wire rope in different directions.
Optionally, the first guide bracket is mounted on a pitch bearing of the hub.
Optionally, the second guiding unit includes a second guiding bracket mounted to the hub, and a second guiding wheel rotatably mounted to the second guiding bracket; the second guide wheel is adapted to guide the wire rope in one direction.
Optionally, the second guide bracket is mounted on a pitch bearing of the hub.
Optionally, the nacelle guiding mechanism comprises a nacelle internal guiding wheel mounted inside the nacelle; the cabin interior guide wheel is adapted to guide the wire rope coming out of the hub guide mechanism to the power unit.
Optionally, the power unit is fixed to the bottom of the tower or to the interior of the nacelle.
Optionally, the power unit comprises a hoist or elevator.
Compared with the prior art, the technical scheme of the embodiment of the utility model has the beneficial effects.
For example, the utility model can realize blade replacement without using large hoisting equipment, has the advantages of low hoisting cost, small occupied area, little greening damage, high response speed and the like, and is particularly suitable for high-tower fans, offshore fans and fans in remote areas with scarcity of large cranes.
For another example, the utility model can guide the steel wire rope to the cabin or the ground by arranging the guide mechanism so as to ensure enough space for installing the large power unit, thereby realizing the purpose of replacing the large blade.
For example, the utility model does not need to open holes on the hubcap, all equipment enters and exits the engine room through the hanging holes of the fan, and meanwhile, the equipment can be carried by fully utilizing the crane of the fan, thereby saving the operation cost and improving the operation efficiency.
Drawings
FIG. 1 is a schematic diagram of a wind turbine in an embodiment of the present utility model;
FIG. 2 is a first schematic illustration of an apparatus for replacing a wind turbine blade based on a plurality of guiding units in an embodiment of the utility model;
FIG. 3 is a second schematic view of an arrangement for replacing a wind turbine blade based on a plurality of guiding units in an embodiment of the utility model;
FIG. 4 is a third schematic view of an arrangement for replacing a wind turbine blade based on a plurality of guiding units in an embodiment of the utility model;
FIG. 5 is a fourth schematic illustration of an apparatus for replacing a wind turbine blade based on a plurality of guiding units in an embodiment of the utility model.
Reference numerals illustrate:
11. a tower; 12. A nacelle; 13. A hub;
14. a blade; 21. Blade root sling; 211. A blade root sling bracket;
212. blade root sling guide wheel; 22. A hub sling; 221. A hub sling support;
222. hub sling guide wheels; 23. A wire rope; 24. A hub guiding mechanism;
241. a first guide unit; 241a, a first guide bracket; 241b, first guide wheels;
242. a second guide unit; 242a, a second guide bracket; 242b, a second guide wheel;
25. a nacelle guide mechanism; 26. A power unit.
Detailed Description
In order to make the objects, features and advantageous effects of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the following detailed description is merely illustrative of the utility model, and not restrictive of the utility model. Moreover, the use of the same, similar reference numbers in the figures may indicate the same, similar elements in different embodiments, and descriptions of the same, similar elements in different embodiments, as well as descriptions of prior art elements, features, effects, etc. may be omitted.
Referring to fig. 1 to 5, an embodiment of the present utility model provides an apparatus for replacing a wind turbine blade based on a plurality of guide units.
Specifically, the wind power generator may include a tower 11 fixed to the ground, a nacelle 12 mounted on top of the tower 11, a hub 13 mounted on the nacelle 12, and blades 14 mounted on the hub 13.
In a specific implementation, the multiple guiding unit based equipment for replacing a wind turbine blade may comprise a blade root sling 21 mounted to the root of the blade 14, a hub sling 22 and a hub guiding mechanism 24 mounted to the hub 13, a nacelle guiding mechanism 25 mounted inside the nacelle 12, and a power unit 26 and a wire rope 23.
Wherein, the wire rope 23 is connected with the blade sling 21 and the hub sling 22 and then sequentially bypasses the hub guiding mechanism 24 and the cabin guiding mechanism 25 to be connected with the power unit 26. The hub guiding mechanism 24 comprises a first guiding unit 241 adapted to guide the wire rope 23 in at least one direction and a second guiding unit 242 adapted to guide the wire rope 23 in one direction. The power unit 26 is adapted to tighten or release the wire rope 23 to hoist or lower the blade 14.
In some embodiments, the blade root sling 21 may include a blade root sling bracket 211 mounted to the root of the blade 14, and a blade root sling guide 212 rotatably mounted to the blade root sling bracket 211.
In some embodiments, the blade root hanger bracket 211 may have mounting holes and be secured to the blade 14 by fasteners.
In some embodiments, the hub sling 22 may include a hub sling bracket 221 mounted to the hub 13, and a hub sling guide wheel 222 rotatably mounted to the hub sling bracket 221.
In some embodiments, the hub sling mount 221 may have mounting holes and be secured to the pitch bearing of the hub 13 by fasteners.
In a specific implementation, the hub sling mount 221 may be mounted on a pitch bearing that connects the blades 14 to be dismounted or mounted.
In a specific implementation, one end of the wire 23 is fixed to the hub 13 or the blade 14 and then sequentially goes around the blade root sling guide wheel 212 and the hub sling guide wheel 222 to connect the blade root sling 21 and the hub sling 22.
In some embodiments, one end of the wire 23 is secured to the hub 13 and, after passing around the blade root spreader guide wheel 212 and the hub spreader guide wheel 222 in turn, is connected to the hub guide mechanism 24.
In a specific implementation, the hub guiding mechanism 24 may include at least one second guiding unit 242 disposed at intervals in sequence, and a first guiding unit 241 located in front of and/or behind the at least one second guiding unit 242.
In a specific implementation, the first guiding unit 241 is adapted to guide the wire rope 23 from the hub sling 22 to a first one 242 of the at least one second guiding unit 242 and/or to guide the wire rope 23 from a last one 242 of the at least one second guiding unit 242 to the nacelle guiding mechanism 25.
In some embodiments, the first guiding unit 241 may be disposed in front of the at least one second guiding unit 242 and connected with the hub sling guiding wheel 222 and a first one of the at least one second guiding unit 242 by the wire rope 23.
In some embodiments, the first guiding unit 241 may also be disposed behind the at least one second guiding unit 242 and connected with the last second guiding unit 242 of the at least one second guiding unit 242 and the nacelle guiding mechanism 25 by the wire rope 23.
In some embodiments, two first guide units 241 may also be provided. One first guiding unit 241 is arranged in front of at least one second guiding unit 242 and is connected with the hub sling guiding wheel 222 and a first second guiding unit 242 of the at least one second guiding units 242 by means of a wire rope 23, and the other first guiding unit 241 is arranged behind the at least one second guiding unit 242 and is connected with the last second guiding unit 242 of the at least one second guiding unit 242 and the nacelle guiding mechanism 25 by means of a wire rope 23.
In some embodiments, the first guide unit 241 may include a first guide bracket 241a mounted to the hub 13, and at least one first guide wheel 241b rotatably mounted to the first guide bracket 241 a. Wherein the installation angle of each first guide wheel 241b of the at least one first guide wheel 241b on the first guide bracket 241a is different to guide the wire rope 23 in different directions.
In some embodiments, the first guide bracket 241a may be mounted on a pitch bearing of the hub 13. For example, the first guide bracket 241a may have a mounting hole thereon and be mounted to the pitch bearing by a fastener.
In a specific implementation, the first guide bracket 241a may be mounted on a pitch bearing on the hub 13 to which the blade 14 to be dismounted and mounted is not connected.
In some embodiments, the wind turbine may be provided with three blades 14. Correspondingly, the hub 13 is provided with three pitch bearings. In a specific implementation, the hub sling mount 221 is mounted on a pitch bearing connecting the blades 14 to be dismounted or mounted, while the first guiding mount 241a is mounted on the other two pitch bearings.
In some embodiments, the hub sling 22, the first guide unit 241, and the second guide unit 242 are not in the same plane. Thereby, the paths of the wire ropes 23 through the hub slings 22, the first guiding units 241, the second guiding units 242 are not in the same plane either.
In some embodiments, two or more first guide wheels 241b may be mounted on the same first guide bracket 241 a. Also, the installation angles of the respective first guide wheels 241b on the first guide brackets 241a are different to guide the wire ropes 23 in different directions.
In this way, not only the wire rope 23 can be guided to different planes, but also the wire rope 23 can be kept at a distance from the first guide bracket 241a and the hub 13 to avoid friction with the first guide bracket 241a and the hub 13.
Referring to fig. 5, in some embodiments, two first guide wheels 241b may be mounted on the first guide bracket 241a disposed in front of the at least one second guide unit 242. One of the first guide wheels 241b is down, the other first guide wheel 241b is up, and the mounting angles of the two first guide wheels 241b are different.
In a specific implementation, the lower first guiding wheel 241b is adapted to guide the wire rope 23 from the hub sling guiding wheel 222 to the upper first guiding wheel 241b, and the upper first guiding wheel 241b is adapted to guide the wire rope 23 from the lower first guiding wheel 241b to the second guiding unit 242.
Similarly, two first guide wheels 241b may be mounted on the first guide bracket 241a disposed behind the at least one second guide unit 242. Wherein one first guiding wheel 241b is adapted to guide the wire rope 23 from the second guiding unit 242 to the other first guiding wheel 241b, the other first guiding wheel 241b is adapted to guide the wire rope 23 from the one first guiding wheel 241b to the nacelle guiding mechanism 25.
In some embodiments, the second guide unit 242 may include a second guide bracket 242a mounted to the hub 13, and a second guide wheel 242b rotatably mounted to the second guide bracket 242 a. Wherein the second guiding wheel 241b is adapted to guide the wire rope 23 in one direction.
In some embodiments, the second guide bracket 242a may be mounted on a pitch bearing of the hub 13. For example, the second guide bracket 242a may have mounting holes thereon and be mounted to the pitch bearing by fasteners.
In a specific implementation, the second guide bracket 242a may be mounted on a pitch bearing on the hub 13 to which the blade 14 to be dismounted and mounted is not connected.
In some embodiments, the wind turbine may be provided with three blades 14. Correspondingly, the hub 13 is provided with three pitch bearings. In a specific implementation, the hub sling mount 221 is mounted on a pitch bearing connecting the blade 14 to be dismounted or mounted, while the second guide mount 242a is mounted on the other two pitch bearings.
In some embodiments, the apparatus may include at least one set of replacement components. Each set of replacement components comprises a blade spreader 21, a hub spreader 22, a set of hub guide mechanisms 24 and a wire rope 23, respectively.
In some embodiments, the wind turbine may be provided with three blades 14. Correspondingly, the hub 13 is provided with three pitch bearings. And, the equipment includes two sets of replacement components.
In a specific implementation, the hub sling brackets 221 of the two sets of replacement assemblies are each mounted on a pitch bearing that connects the blades 14 to be disassembled or mounted, the blade sling 21, hub sling 22 and hub guiding mechanism 24 of one set of replacement assemblies are mounted on one of the other two pitch bearings, and the blade sling 21, hub sling 22 and hub guiding mechanism 24 of the other set of replacement assemblies are mounted on the other of the other two pitch bearings.
In a specific implementation, the first guide bracket 241a and the second guide bracket 242a in the same set of hub guiding mechanisms 24 are both mounted on the same pitch bearing.
In some embodiments, the first guide bracket 241a and the second guide bracket 242a may also be fixed to the fixing bolts of the existing hub pitch bearing without dismantling the original bolts.
In some embodiments, the nacelle guide mechanism 25 may include a nacelle interior guide wheel mounted inside the nacelle 12. The cabin interior guide wheels are adapted to carry and guide the wire ropes 23 and to guide the wire ropes 23 coming out of the hub guide mechanism 24 to the power unit 26.
In some embodiments, the power unit 26 may be secured to the bottom of the tower 11 or the interior of the nacelle 12.
In some embodiments, power unit 26 may include a hoist or elevator.
In order to better understand the technical solution provided by the embodiments of the present utility model, a process of replacing a blade of a wind turbine using the apparatus will be further described below.
On the one hand, the process of dismantling the wind driven generator blade by using the equipment is as follows:
s101, adjusting the blade 14 to be disassembled to a vertical downward position;
s102, fixing the hub guiding mechanism 24 on the hub 13;
s103, fixing the hub sling 22 on the hub 13;
s104, the blade 14 to be disassembled is lowered for a certain distance, for example, 30-80cm by using special blade equipment such as an electric hoist, hydraulic/pneumatic equipment and the like;
s105, fixing the blade root sling 21 on the blade root of the blade 14 to be disassembled;
s106, connecting the steel wire rope 23 to the hub sling 22 and the blade root sling 21;
s107, the steel wire rope 23 bypasses the hub guide mechanism 24 and the cabin guide mechanism 25 and is finally connected to the power unit 26;
s108, starting the power unit 26 to tighten the steel wire rope 23;
s109, dismantling special equipment for the blades;
s110, starting the power unit 26, and downwards placing the steel wires 23, so as to lower the blade 14 to be disassembled to a desired position;
s111, detaching the blade root lifting appliance 21.
On the other hand, the process of using the equipment to install the wind driven generator blade is as follows:
s201, fixing a blade root lifting appliance 21 to a blade 14 to be mounted;
s202, starting the power unit 26, and winding up the steel wire rope 23, so as to lift the blade 14 to be assembled into the air, and reaching a designated position, for example, a position 30-80cm away from the hub 13;
s203, installing special equipment for the blades;
s204, dismantling the blade root lifting appliance 21;
s205, lifting the blade 14 to be assembled to an installation position through special blade equipment, installing a blade root bolt and fastening;
s206, removing the blade replacement equipment.
Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless stated differently. In practice, the features of one or more of the dependent claims may be combined with the features of the independent claims where technically possible, according to the actual needs, and the features from the respective independent claims may be combined in any appropriate way, not merely by the specific combinations enumerated in the claims.
Although the present utility model is disclosed above, the present utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and the scope of the utility model should be assessed accordingly to that of the appended claims.
Claims (10)
1. An arrangement for replacing wind turbine blades based on a plurality of guiding units, the arrangement comprising a tower (11) fixed to the ground, a nacelle (12) mounted on top of the tower (11), a hub (13) mounted on the nacelle (12), and blades (14) mounted on the hub (13), characterized in that the arrangement comprises a blade root sling (21) mounted on the root of the blades (14), a hub sling (22) and a hub guiding mechanism (24) mounted on the hub (13), a nacelle guiding mechanism (25) mounted inside the nacelle (12), and a power unit (26) and a wire rope (23); the steel wire rope (23) is connected with the blade root lifting appliance (21) and the hub lifting appliance (22), then sequentially bypasses the hub guiding mechanism (24) and the cabin guiding mechanism (25) and is connected to the power unit (26); the hub guiding mechanism (24) comprises a first guiding unit (241) and a second guiding unit (242), the first guiding unit (241) being adapted to guide the wire rope (23) in at least one direction, the second guiding unit (242) being adapted to guide the wire rope (23) in one direction; the power unit (26) is adapted to tighten or release the wire rope (23) to hoist or lower the blade (14).
2. The equipment for replacing a wind turbine blade based on a plurality of guiding units according to claim 1, wherein the blade root sling (21) comprises a blade root sling bracket (211) mounted to the root of the blade (14), and a blade root sling guide wheel (212) rotatably mounted to the blade root sling bracket (211); the hub sling (22) comprises a hub sling bracket (221) mounted on the hub (13), and a hub sling guide wheel (222) rotatably mounted on the hub sling bracket (221); the wire rope (23) is connected to the hub (13) or the blade (14) by one end thereof, and sequentially bypasses the blade root sling guide wheel (212) and the hub sling guide wheel (222) to connect the blade root sling (21) and the hub sling (22).
3. The equipment for replacing wind turbine blades based on a plurality of guiding units according to claim 1, characterized in that the hub guiding mechanism (24) comprises at least one second guiding unit (242) arranged at intervals in sequence, and a first guiding unit (241) located in front of and/or behind the at least one second guiding unit (242); the first guiding unit (241) is adapted to guide the wire rope (23) from the hub sling (22) to a first one (242) of the at least one second guiding unit (242) and/or to guide the wire rope (23) from a last one (242) of the at least one second guiding unit (242) to the nacelle guiding mechanism (25).
4. A plurality of guiding unit based equipment for replacing wind turbine blades according to claim 1 or 3, characterized in that the first guiding unit (241) comprises a first guiding bracket (241 a) mounted to the hub (13) and at least one first guiding wheel (241 b) rotatably mounted to the first guiding bracket (241 a); the mounting angles of the respective first guide wheels (241 b) of the at least one first guide wheel (241 b) on the first guide bracket (241 a) are different to guide the wire rope (23) in different directions.
5. The equipment for replacing wind turbine blades based on a plurality of guiding units according to claim 4, characterized in that the first guiding bracket (241 a) is mounted on a pitch bearing of the hub (13).
6. A plurality of guide unit based equipment for replacing wind turbine blades according to claim 1 or 3, wherein the second guide unit (242) comprises a second guide bracket (242 a) mounted to the hub (13), and a second guide wheel (242 b) rotatably mounted to the second guide bracket (242 a); the second guiding wheel (242 b) is adapted to guide the wire rope (23) in one direction.
7. The equipment for replacing wind turbine blades based on a plurality of guiding units according to claim 6, characterized in that the second guiding bracket (242 a) is mounted on a pitch bearing of the hub (13).
8. The equipment for replacing wind turbine blades based on a plurality of guiding units according to claim 1, characterized in that the nacelle guiding mechanism (25) comprises a nacelle inner guiding wheel mounted inside the nacelle (12); the cabin interior guide wheel is adapted to guide the wire rope (23) coming out of the hub guide mechanism (24) to the power unit (26).
9. The equipment for replacing wind turbine blades based on a plurality of guiding units according to claim 1, characterized in that the power unit (26) is fixed to the bottom of the tower (11) or to the inside of the nacelle (12).
10. The multiple guide unit based equipment for replacing wind turbine blades according to claim 1, wherein the power unit (26) comprises a hoist or a hoist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321001652.8U CN219509756U (en) | 2023-04-28 | 2023-04-28 | Wind driven generator blade replacement equipment based on multiple guide units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321001652.8U CN219509756U (en) | 2023-04-28 | 2023-04-28 | Wind driven generator blade replacement equipment based on multiple guide units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219509756U true CN219509756U (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321001652.8U Active CN219509756U (en) | 2023-04-28 | 2023-04-28 | Wind driven generator blade replacement equipment based on multiple guide units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219509756U (en) |
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2023
- 2023-04-28 CN CN202321001652.8U patent/CN219509756U/en active Active
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